diff --git a/docs/toml.md b/docs/toml.md
index 574efd39a..e49f82e27 100644
--- a/docs/toml.md
+++ b/docs/toml.md
@@ -823,7 +823,7 @@ Labels can be used on containers to override default behaviour:
 - `traefik.protocol=https`: override the default `http` protocol
 - `traefik.weight=10`: assign this weight to the container
 - `traefik.enable=false`: disable this container in Træfɪk
-- `traefik.frontend.rule=Host:test.traefik.io`: override the default frontend rule (Default: `Host:{containerName}.{domain}` or `Host:{project_name}-{service}.{domain}` if you are using `docker-compose`).
+- `traefik.frontend.rule=Host:test.traefik.io`: override the default frontend rule (Default: `Host:{containerName}.{domain}` or `Host:{service}.{project_name}.{domain}` if you are using `docker-compose`).
 - `traefik.frontend.passHostHeader=true`: forward client `Host` header to the backend.
 - `traefik.frontend.priority=10`: override default frontend priority
 - `traefik.frontend.entryPoints=http,https`: assign this frontend to entry points `http` and `https`. Overrides `defaultEntryPoints`.
diff --git a/provider/docker.go b/provider/docker.go
index 3c309d178..9cc57b17d 100644
--- a/provider/docker.go
+++ b/provider/docker.go
@@ -526,7 +526,7 @@ func (provider *Docker) getFrontendRule(container dockerData) string {
 		return label
 	}
 	if labels, err := getLabels(container, []string{"com.docker.compose.project", "com.docker.compose.service"}); err == nil {
-		return "Host:" + provider.getSubDomain(labels["com.docker.compose.project"]+"_"+labels["com.docker.compose.service"]) + "." + provider.Domain
+		return "Host:" + provider.getSubDomain(labels["com.docker.compose.service"]+"."+labels["com.docker.compose.project"]) + "." + provider.Domain
 	}
 
 	return "Host:" + provider.getSubDomain(container.ServiceName) + "." + provider.Domain
@@ -537,7 +537,7 @@ func (provider *Docker) getBackend(container dockerData) string {
 		return normalize(label)
 	}
 	if labels, err := getLabels(container, []string{"com.docker.compose.project", "com.docker.compose.service"}); err == nil {
-		return normalize(labels["com.docker.compose.project"] + "_" + labels["com.docker.compose.service"])
+		return normalize(labels["com.docker.compose.service"] + "_" + labels["com.docker.compose.project"])
 	}
 	return normalize(container.ServiceName)
 }
diff --git a/provider/docker_test.go b/provider/docker_test.go
index 4347ee79c..ac614ae1c 100644
--- a/provider/docker_test.go
+++ b/provider/docker_test.go
@@ -56,7 +56,7 @@ func TestDockerGetFrontendName(t *testing.T) {
 					},
 				},
 			},
-			expected: "Host-foo-bar-docker-localhost",
+			expected: "Host-bar-foo-docker-localhost",
 		},
 		{
 			container: docker.ContainerJSON{
@@ -159,7 +159,7 @@ func TestDockerGetFrontendRule(t *testing.T) {
 					},
 				},
 			},
-			expected: "Host:foo-bar.docker.localhost",
+			expected: "Host:bar.foo.docker.localhost",
 		},
 		{
 			container: docker.ContainerJSON{
@@ -235,7 +235,7 @@ func TestDockerGetBackend(t *testing.T) {
 					},
 				},
 			},
-			expected: "foo-bar",
+			expected: "bar-foo",
 		},
 	}